<form name="search" method="post" action="index.php?cat=search">
 <input type="text" name="find" placeholder="search circles" class="form" style="background:#fdd;box-shadow:none;padding:5px"/> 
 <input type="hidden" name="searching" value="yes" />
 <!--<input type="submit" name="search" value="Search" class="form"/> -->
 </span>
 </form>